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<p>classical negation corresponds to <a href="page.php?w=Complement_%28order_theory%29">complementation</a> in a <a href="page.php?w=Boolean_algebra_%28structure%29">Boolean algebra</a>, and intuitionistic negation to pseudocomplementation in a <a href="page.php?w=Heyting_algebra">Heyting algebra</a>. These algebras provide a <a href="page.php?w=algebraic_semantics_%28mathematical_logic%29">semantics</a> for classical and intuitionistic logic.</p>

<p><big>Notation</big></p>
<p>The negation of a proposition  is notated in different ways, in various contexts</p><p>
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